Center clamp forming method has been applied to avoid wrinkles in the press forming of a rectangular cup with bottom edge trimming using a continuous woven carbon fiber-reinforced plastic plate. Trimming of a bottom edge during forming is a convenient method to obtain smooth bottom without any other successive process. But it closes the die profile that may cause fiber wrinkle. By the center clamp forming compared with free forming, it is confirmed that this is one of the methods to achieve smooth top flat surface of the cup without wrinkles. Monitoring pressure using pressure sensors elucidated pressure application process during the press forming and cooling process. Difference of the pressure holding time in the cooling process was observed between the pressure on the side plate and that on the top flat plate. Sliding descent during the cooling under constant load indicated the solidification finishing time of the thermoplastic resin.

中心夹成形方法已被应用，以避免在使用连续编织的碳纤维增强塑料板进行底边修整的矩形杯的冲压成形中产生褶皱。在成型过程中修整底部边缘是一种无需任何其他连续过程即可获得光滑底部的便捷方法。但这会闭合模具轮廓，从而可能导致纤维起皱。通过中心夹持成形与自由成形相比，可以确认这是获得杯子无褶皱的顶部平坦表面的方法之一。使用压力传感器监控压力可以阐明压力机成型和冷却过程中的压力施加过程。观察到在冷却过程中压力保持时间在侧板上的压力和顶部平板上的压力之间的差异。